document.write( "Question 1191996: The probability of a higher jump clearing 1.8m on any jump is 0.6,what is the probability of his clearing 1.8 m in precisely three out of seven jumps?? \n" ); document.write( "
Algebra.Com's Answer #823861 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The probability of his clearing is 0.6, so on any one jump the probability that he clears is 0.6 and the probability that he fails is 0.4. \n" ); document.write( "So on any given sequence of 7 jumps, the probability that he clears 3 times and fails 4 times is (0.6^3)*(0.7^4). \n" ); document.write( "The number of different sequences of 7 jumps in which he clears 3 times is \"7 choose 3\", C(7,3). \n" ); document.write( "ANSWER: C(7,3)*(0.6^3)*(0.7^4) \n" ); document.write( "You can do the calculations.... \n" ); document.write( " \n" ); document.write( " |